Results 31 to 40 of about 379 (150)

Predation on desert tortoises (Gopherus agassizii) by desert canids

Journal of Arid Environments, 2021
Desert tortoises (Gopherus agassizii) are a long-lived reptile vulnerable to predation by many predators, including desert kit foxes (Vulpes macrotis arsipus) and coyotes (Canis latrans). From 2009 to 2014, we assessed canid food habits at a study site in the Mojave Desert in California, USA, by collecting and analyzing desert kit fox and coyote scats.
Erica C. Kelly, Brian L. Cypher, Tory L. Westall   +2 more
openaire   +1 more source

Mycoplasma testudineum in Free-ranging Desert Tortoises, Gopherus agassizii [PDF]

Journal of Wildlife Diseases, 2012
We performed clinico-pathological evaluations of 11 wild Agassiz's desert tortoises (Gopherus agassizii) from a translocation project in the central Mojave Desert, California, USA. Group 1 consisted of nine tortoises that were selected primarily due to serologic status, indicating exposure to Mycoplasma testudineum (seven) or both M.
Elliott R, Jacobson, Kristin H, Berry
openaire   +2 more sources

Mycoplasma agassizii sp. nov., isolated from the upper respiratory tract of the desert tortoise (Gopherus agassizii) and the gopher tortoise (Gopherus polyphemus). [PDF]

International Journal of Systematic and Evolutionary Microbiology, 2001
Biochemical, serological and molecular genetic studies were performed on seven mycoplasma isolates that were recovered from the upper respiratory tract of clinically ill desert tortoises. The isolates were serologically related to each other but serologically distinct from previously described species.
M B, Brown, D R, Brown, P A, Klein, G S, McLaughlin, I M, Schumacher, E R, Jacobson, H P, Adams, J G, Tully   +7 more
openaire   +2 more sources

Gopherus agassizii

, 2022
Gopherus agassizii (Cooper 1861:120) Syntypes (3): “Three young specimens”, apparently originally in the California State Geological Survey collection according to Cooper (1861:120). The syntypes were later transferred to other collections, since USNM 7888 was listed by Cochran (1961:236) and Reynolds et al. (2007:32) as one of the syntypes.
openaire   +2 more sources

High quality draft genome sequence of Mycoplasma testudineum strain BH29T, isolated from the respiratory tract of a desert tortoise

Standards in Genomic Sciences, 2018
Mycoplasma testudineum is one of the pathogens that can cause upper respiratory tract disease in desert tortoises, Gopherus agassizii. We sequenced the genome of M. testudineum BH29T (ATCC 700618T = MCCM 03231T), isolated from the upper respiratory tract
Chava L. Weitzman, Richard L. Tillett, Franziska C. Sandmeier, C. Richard Tracy, David Alvarez-Ponce   +4 more
doaj   +1 more source

Hematological parameters of the Bolson tortoise Gopherus flavomarginatus in Mexico

Acta Herpetologica, 2019
We present findings of our preliminary study to determine biometry and blood chemistry values of healthy wild individuals of the critically endangered Bolson tortoises (Gopherus flavomarginatus) in Mexico.
Cristina García-De la Peña, Roger Iván Rodríguez-Vivas, Jorge A. Zegbe-Domínguez, Luis Manuel Valenzuela-Núñez, César A. Meza Herrera, Quetzaly Siller-Rodríguez, Verónica Ávila-Rodríguez   +6 more
doaj   +1 more source

A spatially explicit model for density that accounts for availability: a case study with Mojave desert tortoises

Ecosphere, 2023
Estimating population density and identifying those areas where density is changing through time are central to prioritizing conservation and management strategies.
Erin R. Zylstra, Linda J. Allison, Roy C. Averill‐Murray, Vincent Landau, Nathaniel S. Pope, Robert J. Steidl   +5 more
doaj   +1 more source

A trade-off between natural and acquired antibody production in a reptile: implications for long-term resistance to disease

Biology Open, 2012
Summary Vertebrate immune systems are understood to be complex and dynamic, with trade-offs among different physiological components (e.g., innate and adaptive immunity) within individuals and among taxonomic lineages.
Franziska C. Sandmeier, C. Richard Tracy, Sally Dupré, Kenneth Hunter   +3 more
doaj   +1 more source

ANTHROPOGENIC THREAT TO THE DESERT TORTOISE (GOPHERUS AGASSIZII): LITTER IN THE MOJAVE DESERT

Western North American Naturalist, 2007
Andrew D Walde, David K Delaney
exaly   +3 more sources

‘Unscrambling’ the drivers of egg production in Agassiz’s desert tortoise: climate and individual attributes predict reproductive output

Endangered Species Research, 2021
The ‘bet hedging’ life history strategy of long-lived iteroparous species reduces short-term reproductive output to minimize the risk of reproductive failure over a lifetime.
CI Mitchell, DA Friend, LT Phillips, EA Hunter, JE Lovich, M Agha, SR Puffer, KL Cummings, PA Medica, TC Esque, KE Nussear, KT Shoemaker   +11 more
doaj   +1 more source